Re: [quicwg/base-drafts] Text on ECN probing (#3585)

mirjak <notifications@github.com> Wed, 27 May 2020 12:30 UTC

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Date: Wed, 27 May 2020 05:30:25 -0700
From: mirjak <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Text on ECN probing (#3585)
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#3669 does not address this issue. This was just a side comment that came up. I think the minimum would be to replace

"To reduce the chances of misinterpreting congestive loss as packets dropped by a
faulty network element..."

by

"If there is as a concern for a certain network that all ECT-marked packets might be dropped by a faulty network element and would therefore cause a performance drop, then..."

However, I would still prefer to give a bit more context than this (basically one more sentence as proposed). I don't think this fits in the applicability statement as I don't think there is any intention here to provide an interface to specify the ECN probing behaviour and therefore a "user" of QUIC, which is the audience for the applicability statement, would not know what to do about this information. If we want an interface and move this to applicability, I think the whole text should be moved there with some more discussion rather than giving a random recommendation in the base spec.

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